505747086 has 16 divisors (see below), whose sum is σ = 1089301584. Its totient is φ = 155614464.

The previous prime is 505747063. The next prime is 505747091. The reversal of 505747086 is 680747505.

It is a super-2 number, since 2×505747086² = 511560229994982792, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3241891 + ... + 3242046.

It is an arithmetic number, because the mean of its divisors is an integer number (68081349).

Almost surely, 2^505747086 is an apocalyptic number.

505747086 is an abundant number, since it is smaller than the sum of its proper divisors (583554498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505747086 is a wasteful number, since it uses less digits than its factorization.

505747086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483955.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 505747086 is about 22488.8213563984. The cubic root of 505747086 is about 796.7299254364.

The spelling of 505747086 in words is "five hundred five million, seven hundred forty-seven thousand, eighty-six".